CN218597163U

CN218597163U - Anchor rope drill way section auxiliary device that is in milk

Info

Publication number: CN218597163U
Application number: CN202222882704.9U
Authority: CN
Inventors: 易湘华; 陈萌; 王涛; 肖传勇; 康子民; 许文涛; 杨健; 周文斌; 刘大海; 佟岚; 武才斌; 聂向洲; 卢耀民
Original assignee: China Gezhouba Group Three Gorges Construction Engineering Co Ltd
Current assignee: China Gezhouba Group Three Gorges Construction Engineering Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-03-10
Anticipated expiration: 2032-10-31

Abstract

The utility model provides an anchor cable orifice section grouting auxiliary device, which comprises an anchor cable guide steel pipe, wherein the anchor cable guide steel pipe is fixed on the outer wall of a steel backing plate, two groups of grouting holes which are arranged in parallel are processed on the anchor cable guide pipe, small steel pipes are correspondingly fixed at the positions of the grouting holes, and flexible grouting pipes are sleeved and fixed on the small steel pipes; the small steel pipe is positioned inside the reinforced concrete anchor pier; one of the flexible grouting pipes is used as a grouting pipe, and the other flexible grouting pipe is used as a grout return pipe. The device is through the seamless and unobstructed grout pipe of modified to and anchor rope self protection steel casing, stop the thick liquid package, wait that the mud return pipe is bent and is ligatured after the thick liquid returns in the grout process for the drill way section forms a withstand voltage obturator, ensures to promote to the anchor rope drill way section grout of design requirement and screen thick liquid pressure, makes the grout closely knit, guarantees anchor rope drill way section grout quality.

Description

Anchor rope drill way section auxiliary device that is in milk

Technical Field

The utility model relates to an anchor rope drill way section auxiliary device that is in milk belongs to the anchor rope construction engineering field in plain hole and the hole of bowing.

Background

The anchor cable is widely applied to deep support of side slopes, grottos and the like, and after the construction of the anchor cable is finished, anti-sliding resistance can be generated on a sliding surface, so that the displacement of soil bodies and rock bodies is effectively controlled, the stability of the soil bodies and the rock bodies is promoted, and the purposes of regulating bedding, landslides and dangerous rocks are achieved. The grouting of the anchor cable orifice section is a key procedure of anchor cable construction, and if the grouting of the anchor cable orifice section is not compact or fails, the anchor head steel strand and the anchor clamping piece are easily corroded by underground water or oxidized by contacting air, so that the risk of late loss of locking prestress of the anchor cable is increased, and the service life of the anchor cable is shortened.

Traditional anchor rope orifice section grout directly adopts the PE grout pipe, in the entry that direction steel pipe is close to the steel backing plate and sets up is inserted to grout return pipe (outlet duct), there is the gap between the entry on PE pipe and the direction steel pipe, easily get into the direction steel pipe through this gap during anchor pier concrete placement, block up the grout pipe, the grout return pipe mouth of pipe, the steel strand wires of densely covered in the direction steel pipe in addition, perhaps lead to the PE pipe to buckle in the PE pipe disect insertion direction steel pipe, warp, the flat PE pipe of straight crowded because of the steel strand wires atress among the anchor rope stretch-draw process, and then make anchor rope orifice section grout passageway not smooth or direct stifled dead pipeline. Therefore, the traditional anchor cable orifice section grouting method has various defects, the grouting of the orifice section is not compact or fails due to slight improper operation, the risk of late loss of locking prestress of the anchor cable is increased, and the service life of the anchor cable is shortened.

SUMMERY OF THE UTILITY MODEL

For solving above technical problem, the utility model provides a closely knit device of anchor rope drill way section grout, the device is through the seamless and unobstructed grout pipeline of modified to and the protection steel casing of anchor rope self, the grout stopping package, treat that grout in-process grout returning pipe returns the thick liquid back bend and ligature this pipe, make the drill way section form a pressure-resistant obturator, ensure to promote to the anchor rope drill way section grout of designing requirement and shield thick liquid pressure, it is closely knit to make the grout, guarantee anchor rope drill way section grout quality.

In order to realize the technical characteristics, the purpose of the utility model is realized as follows: an anchor cable orifice section grouting auxiliary device comprises an anchor cable guide steel pipe, wherein the anchor cable guide steel pipe is fixed on the outer wall of a steel base plate, two groups of grouting holes which are arranged in parallel are processed on the anchor cable guide pipe, small steel pipes are correspondingly fixed at positions of the grouting holes, and flexible grouting pipes are fixedly sleeved on the small steel pipes; the small steel pipe is positioned inside the reinforced concrete anchor pier; one of the flexible grouting pipes is used as a grouting pipe, and the other flexible grouting pipe is used as a grout return pipe.

The small steel pipe is made of galvanized steel pipe materials, and the length value of the small steel pipe is as follows: 10 cm-15 cm.

The flexible grouting pipe adopts a PE pipe, and the flexible grouting pipe is sleeved on the small steel pipe, so that the length value of the flexible grouting pipe is as follows: 8 cm-10 cm.

The outer end of the flexible grouting pipe extends out of the outer surface of the reinforced concrete anchor pier and is not less than 50cm.

The steel backing plate is provided with anchor sealing concrete on the side far away from the small steel pipe, and an anchorage device is arranged in the anchor sealing concrete.

And a concrete spray layer is arranged on the outer wall of the reinforced concrete anchor pier.

The anchor rope guide steel pipe is characterized in that a steel hinge line is arranged inside the anchor rope guide steel pipe, the steel hinge line penetrates through an anchor plate and a supporting plate which are arranged inside the anchor rope guide steel pipe, a grouting pipe is arranged at the center of the anchor rope guide steel pipe, a guide cap is arranged at the end of the grouting pipe, and a grout stopping bag is arranged outside the steel hinge line and inside the anchor rope guide steel pipe.

The utility model discloses there is following beneficial effect:

1. the utility model discloses the device is through the seamless and unobstructed grout pipeline of modified to and the protection steel casing of anchor rope self, only the thick liquid package, treat grout return pipe in-process and turn back the thick liquid back bend and ligature this pipe, make the drill way section form a withstand voltage obturator, ensure to promote to the anchor rope drill way section grout of designing requirement and screen thick liquid pressure, make the grout closely knit, guarantee anchor rope drill way section grout quality.

2. Device can guarantee anchor rope orifice segment grout quality and anchor rope design life, reduces the locking prestressing force later stage loss risk of anchor rope.

3. The small steel pipe made of the material has enough structural strength, can bear the lateral pressure of anchor pier concrete, and avoids the phenomena of grouting pipe deformation, grouting channel blockage, blockage and the like.

4. Through the slurry return pipe of the small steel pipe and the flexible grouting pipe, the internal pressure of a grouting area during grouting of a large opening section can be increased, and the grouting and screen grouting pressures meeting design requirements are achieved, so that grouting is compact, and the grouting quality is ensured.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is the whole structure diagram of the utility model.

Fig. 2 is a three-dimensional view of the present invention.

In the figure: the anchor comprises a reinforced concrete anchor pier 1, a steel backing plate 2, an anchorage device 3, anchor sealing concrete 4, a flexible grouting pipe 5, a small steel pipe 6, a concrete spraying layer 7, an anchor rope guide pipe 8, a steel strand 9, an anchor plate 10, a supporting plate 11, a grouting pipe 12, a guide cap 13 and a grout stopping bag 14.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

Example 1:

referring to fig. 1-2, an anchor cable orifice section grouting auxiliary device includes an anchor cable guide steel pipe 8, the anchor cable guide steel pipe 8 is fixed on the outer wall of a steel backing plate 2, two groups of grouting holes arranged in parallel are processed on the anchor cable guide pipe 8, a small steel pipe 6 is correspondingly fixed at the position of the grouting hole, and a flexible grouting pipe 5 is sleeved and fixed on the small steel pipe 6; the small steel pipe 6 is positioned inside the reinforced concrete anchor pier 1; one of the flexible grouting pipes 5 is used as a grouting pipe, and the other flexible grouting pipe 5 is used as a grout return pipe. By adopting the grouting auxiliary device, the grouting quality of the orifice section of the anchor cable and the design service life of the anchor cable can be guaranteed, and the risk of later loss of the locking prestress of the anchor cable is reduced.

Further, the small steel pipe 6 is made of a galvanized steel pipe material, and the length of the small steel pipe 6 is as follows: 10 cm-15 cm. The small steel pipe 6 made of the material has enough structural strength, can bear the lateral pressure of anchor pier concrete, and avoids the phenomena of grouting pipe deformation, grouting channel blockage, blockage and the like.

Further, flexible grout pipe 5 adopts the PE pipe, and flexible grout pipe 5 embolias the length value on little steel pipe 6 and does: 8 cm-10 cm. Through adopting the PE pipe to be flexible structure, guaranteed that it can buckle and then conveniently carry out the shutoff to it.

Furthermore, the outer end of the flexible grouting pipe 5 extends out of the outer surface of the reinforced concrete anchor pier 1 by more than or equal to 50cm. The flexible grouting pipe 5 is convenient to be connected with grouting equipment, and accordingly corresponding sealing grouting is achieved.

Further, the steel backing plate 2 is provided with anchor sealing concrete 4 on the side far away from the small steel pipe 6, and an anchorage device 3 is arranged in the anchor sealing concrete 4. The anchorage device 3 can be used for connecting and fixing the steel strand 9.

Further, a concrete spray layer 7 is arranged on the outer wall of the reinforced concrete anchor pier 1. The concrete spraying layer 7 can be used for spraying the outside of the reinforced concrete anchor pier 1.

Further, a steel hinge line 9 is arranged inside the anchor rope guide steel pipe 8, the steel hinge line 9 penetrates through an anchor plate 10 and a supporting plate 11 which are arranged inside the anchor rope guide steel pipe 8, a grouting pipe 12 is arranged at the center of the anchor rope guide steel pipe 8, a guide cap 13 is arranged at the end of the grouting pipe 12, and a grout stopping bag 14 is arranged outside the steel hinge line 9 and inside the anchor rope guide steel pipe 8.

Anchor rope drill way section grout auxiliary device's construction steps:

step 1: two grouting holes with the diameter of 20mm are formed in the anchor cable guide steel pipe 8.

Step 2: and welding small galvanized steel pipes 6 with the same inner diameter of 20mm on the two grouting holes, wherein the length of the small steel pipes 6 is controlled below the surface of the reinforced concrete anchor pier 1 and is about 10-15 cm.

And step 3: the small steel pipe 6 is tightly sleeved with a PE flexible grouting pipe 5, the inner diameter of the PE flexible grouting pipe 5 is the outer diameter of the steel pipe, the length of the PE flexible grouting pipe 5 sleeved into the small steel pipe is 8 cm-10 cm, the firm sleeving connection is ensured, the outer end of the PE flexible grouting pipe 5 needs to extend out of the outer surface of anchor pier concrete to be more than or equal to 50cm, the PE flexible grouting pipe 5 is conveniently bent and bound during grout shielding, the grouting pressure of the anchor cable hole section is improved, the galvanized small steel pipe and the PE pipe sleeved on the galvanized small steel pipe jointly form a grouting pipeline of the anchor cable hole section, one of the galvanized small steel pipe and the PE pipe are used as grouting pipes, and the other of the galvanized small steel pipe and the PE pipe are used as grout return pipes.

Claims

1. The utility model provides an anchor rope drill way section auxiliary device that is in milk which characterized in that: the anchor cable guide steel pipe grouting device comprises an anchor cable guide steel pipe (8), wherein the anchor cable guide steel pipe (8) is fixed on the outer wall of a steel base plate (2), two groups of grouting holes which are arranged in parallel are processed on the anchor cable guide steel pipe (8), a small steel pipe (6) is correspondingly fixed at the position of each grouting hole, and a flexible grouting pipe (5) is fixedly sleeved on each small steel pipe (6); the small steel pipe (6) is positioned inside the reinforced concrete anchor pier (1); one flexible grouting pipe (5) is used as a grouting pipe, and the other flexible grouting pipe (5) is used as a grout return pipe.

2. The anchor line orifice section grouting aid of claim 1, wherein: the small steel pipe (6) is made of galvanized steel pipe materials, and the length of the small steel pipe (6) is as follows: 10 cm-15 cm.

3. The anchor line orifice section grouting aid of claim 1, wherein: flexible grout pipe (5) adopt the PE pipe, just flexible grout pipe (5) embolia the length value on little steel pipe (6) and do: 8 cm-10 cm.

4. The anchor cable orifice section grouting aid of claim 3, wherein: the outer end of the flexible grouting pipe (5) extends out of the outer surface of the reinforced concrete anchor pier (1) and is not less than 50cm.

5. The anchor line orifice section grouting aid of claim 1, wherein: the steel backing plate (2) is provided with anchor sealing concrete (4) at the side far away from the small steel pipe (6), and an anchorage device (3) is arranged in the anchor sealing concrete (4).

6. The anchor line orifice section grouting aid of claim 1, wherein: and a concrete spray layer (7) is arranged on the outer wall of the reinforced concrete anchor pier (1).

7. The anchor line orifice section grouting aid of claim 1, wherein: the anchor rope guide steel pipe is characterized in that a steel hinge line (9) is arranged inside the anchor rope guide steel pipe (8), the steel hinge line (9) penetrates through an anchor plate (10) and a supporting plate (11) which are arranged inside the anchor rope guide steel pipe (8), a grouting pipe (12) is arranged at the center of the anchor rope guide steel pipe (8), a guide cap (13) is arranged at the end of the grouting pipe (12), and a grout stopping bag (14) is arranged outside the steel hinge line (9) and inside the anchor rope guide steel pipe (8).